Filter structure for bending machine equipment
By designing a filter structure with multi-stage filter screens and settling tanks, the problems of inconvenient filter screen replacement and impurities sticking to the bottom of the oil tank in bending machines have been solved, achieving the effect of convenient filter screen replacement and easy cleaning of impurities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-04-07
AI Technical Summary
The existing filter structure of bending machine equipment makes it inconvenient to replace the filter screen, and the impurities stuck to the bottom of the oil tank are difficult to clean.
Design a filter structure including a housing, a filter base, a filter screen, and a cover plate. The filter screen is movably connected to the base via a slot. The impurity settling tank is easy to clean. The filter screen and the base can be disassembled separately. After the oil is filtered through the multi-stage filter screen, the impurities automatically settle.
It enables convenient filter replacement and easy cleaning of impurities at the bottom of the oil tank, improving equipment maintenance efficiency and operational stability.
Smart Images

Figure CN224093628U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of oil tank filter structure, and more specifically to a filter structure for bending machine equipment. Background Technology
[0002] In bending machines, hydraulic oil filtration structures purify the hydraulic oil through filters. A filter typically consists of filter media, a housing, and connecting pipes. When hydraulic oil passes through the filter, impurities are captured by the filter media, thus purifying the hydraulic oil and ensuring the normal operation of the bending machine. Hydraulic oil filtration technology is widely used in engineering machinery and is an important technology for system protection. Most hydraulic system failures are caused by media mixed in the hydraulic oil tank. Hydraulic oil filtration technology can effectively remove impurities from the hydraulic oil, ensuring the normal operation of the hydraulic system and extending equipment life. However, existing technologies often have the following problems in use:
[0003] 1. The existing filter structure of bending machine equipment still has the problem of being troublesome to clean and replace the oil tank filter screen. Therefore, a filter structure that is easy to clean and replace the filter screen should be designed.
[0004] 2. In existing bending machine equipment, the bottom of the hydraulic oil tank is mostly flat. Due to the viscosity of the oil, some impurities are easily retained at the bottom of the hydraulic oil tank and stick to the bottom of the tank, making it very inconvenient to clean. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a filter structure for bending machines, which solves the problems of troublesome filter replacement and impurities sticking to the bottom of the oil tank.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a filter structure for a bending machine, comprising a housing, a filter base movably connected to the bottom of the housing, filter plate slots provided on both sides of the top of the filter base, a first filter screen, a second filter screen and a third filter screen movably connected above the filter plate slots, and a cover plate movably connected to the top of the housing.
[0007] As a further embodiment of this utility model: an oil inlet is provided at the lowest point on one side of the housing, and an oil outlet is provided on the opposite side.
[0008] As a further embodiment of this utility model: the top of the box is provided with a connecting protrusion, and the bottom of the cover plate is provided with a connecting groove, the two connecting grooves being of the same size.
[0009] As a further embodiment of this utility model: the first filter screen, the second filter screen, and the third filter screen can all be disassembled individually, and the pore size of the first filter screen, the second filter screen, and the third filter screen decreases sequentially.
[0010] As a further embodiment of this utility model: a settling groove is dug at the top center of the filter base, and the top of the settling groove is in contact with the bottom of the first filter screen, the second filter screen and the third filter screen.
[0011] As a further embodiment of this utility model, a sealing gasket is provided inside the groove of the cover plate.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] The filter base has multiple slots, and the filter screen slots on the base can be movably connected to the base. The filter screen can be easily removed by opening the oil tank cover. The filter screen can be removed individually or all of them, making it very convenient to replace.
[0014] With a filter base equipped with a settling tank, impurities on the filter screen and various impurities that easily stick to the bottom of the oil tank will automatically settle into the settling tank of the filter base. The settling tank can be removed separately for easy cleaning, thus avoiding the problem of impurities settling at the bottom of the oil tank and being difficult to clean. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of a filter structure for a bending machine as described in an embodiment of this utility model.
[0016] Figure 2 This is an exploded view of a filter structure for a bending machine as described in an embodiment of this utility model.
[0017] Figure 3 This is a schematic diagram of the filter screen structure of a filter structure for a bending machine as described in an embodiment of the present invention.
[0018] Figure 4 This is a schematic diagram of the base of a filter screen structure for a bending machine as described in an embodiment of the present invention.
[0019] In the above attached figures: 1. Housing; 12. Oil inlet; 13. Oil outlet; 14. Connecting groove; 2. Base; 21. Settling tank; 22. Filter plate slot; 3. First filter screen; 4. Second filter screen; 5. Third filter screen; 6. Sealing gasket; 7. Cover plate; 71. Groove. Detailed Implementation
[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0021] likeFigures 1-3 As shown, this utility model provides a technical solution:
[0022] A filter structure for a bending machine includes a housing 1, with a base 2 movably connected to the bottom inner side of the housing 1. Filter plate slots 22 are provided on both sides of the top of the base 2. A first filter screen 3, a second filter screen 4, and a third filter screen 5 are movably connected above the filter plate slots 22. A cover plate 7 is movably connected to the top of the housing 1. Specifically, after the oil enters the oil tank through the oil inlet 12, impurities in the oil are filtered layer by layer through the first filter screen 3, the second filter screen 4, and the third filter screen 5. The filter screen diameter decreases from large to small to prevent impurities from clogging the filter screens. The first filter screen 3, the second filter screen 4, and the third filter screen 5 are all movably connected to the filter plate slots 22 on both sides of the top of the filter base 2. The filter screens can be removed individually simply by opening the cover plate 7, making replacement very convenient.
[0023] A settling groove 21 is carved into the top center of the base 2, and the top of the settling groove 21 is in contact with the bottom of the first filter screen 3, the second filter screen 4, and the third filter screen 5. Specifically, oil impurities in the tank 1 are filtered by the first filter screen 3, the second filter screen 4, and the third filter screen 5 and naturally settle, concentrating on the base 2. They then slide down into the settling groove 21 through the sloping structure of the base. The filter base 2 can be easily removed for cleaning, and it prevents impurities from settling at the bottom of the oil tank and contaminating the inner wall of the tank 1.
[0024] An oil inlet 12 is connected to the lowest point on one side of the housing 1, and an oil outlet 13 is connected to the opposite side. The height of the oil inlet 12 is lower than that of the oil outlet 13. The filtered oil flows out of the oil outlet 13 from the higher point, and impurities remain on the bottom filter base 2.
[0025] The top of the housing 1 is provided with a connecting groove 14, and the bottom of the cover plate 7 is provided with a connecting groove 71. The two connecting grooves fit together. A sealing gasket 6 is provided in front of the connecting grooves of the housing 1 and the cover plate 7. The oil tank forms a sealing structure through the groove and the sealing gasket 6 to avoid evaporation and waste.
[0026] The detailed working process of this utility model is as follows:
[0027] 1. When filtering impurities in the oil in the tank, the oil first enters the tank through the oil inlet 12. It first passes through the first filter screen 3 with a relatively large diameter to filter out large impurities, then passes through the second filter screen 4 to filter out smaller impurities, and finally passes through the third filter screen 5 for a finer filtration. The filtration is carried out layer by layer, with the filter screen diameter decreasing from large to small to avoid impurities clogging the filter screen.
[0028] 2. After a period of filtration, the impurities filtered out by the first filter screen 3, the second filter screen 4, and the third filter screen 5 will automatically fall onto the filter base 2 due to gravity. The filter base 2 has a sloping structure on top, with a settling tank 21 in the middle of the top. The impurities falling onto the filter base 2 will automatically slide down the slope and finally collect in the settling tank 21. The filter base 2 is movably connected to the housing 1 and can be disassembled. The first filter screen 3, the second filter screen 4, and the third filter screen 5 are also movably connected to the filter base 2 via filter plate slots 22, and can all be disassembled for easy cleaning without contaminating the inner wall of the oil tank. Finally, the filtered oil is discharged from the oil tank through the oil outlet 13, completing the filtration process.
[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A filter structure for a bending machine, characterized in that, Includes a housing (1), with a base (2) movably connected to the bottom of the inner side of the housing (1), and filter plate slots (22) provided on both sides of the top of the base (2). A first filter screen (3), a second filter screen (4) and a third filter screen (5) are movably connected above the filter plate slots (22), and a cover plate (7) is movably connected above the housing (1).
2. The filter structure for a bending machine according to claim 1, characterized in that, in: The base (2) has a settling groove (21) at the top center, and the top of the settling groove (21) is in contact with the bottom of the first filter screen (3), the second filter screen (4) and the third filter screen (5).
3. The filter structure for a bending machine according to claim 1, characterized in that, in: The top of the box (1) is provided with a connecting groove (14), and the bottom of the cover plate (7) is provided with a groove (71), and the two connecting grooves fit together in size.
4. The filter structure for a bending machine according to claim 1, characterized in that, in: The first filter (3), the second filter (4) and the third filter (5) can all be disassembled individually, and the pore size of the first filter (3), the second filter (4) and the third filter (5) decreases sequentially.
5. A filter structure for a bending machine according to claim 1, characterized in that, in: An oil inlet (12) is connected to the lowest point on one side of the housing (1), and an oil outlet (13) is connected to the side of the housing (1) opposite to the oil inlet (12).
6. A filter structure for a bending machine according to claim 3, characterized in that, in: A sealing gasket (6) is provided in the groove (71) of the cover plate (7).